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Lemon zucchini bread takes the classic zucchini loaf to another level with a pop of citrus flavor from lemon juice and zest. A simple lemon glaze brings it all the way to wow!

Slices of lemon zucchini bread leaning on each other on white surface
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Today for breakfast in my house, I went in a slightly indulgent direction with a most moist and tender quick bread, this iced gluten free lemon zucchini bread. But I have a good reason.

This morning, I'm shipping two of my three children off to sleepaway camp for almost a month. The third, my oldest, has a nationals softball tournament for a week with my husband.

Then she joins her siblings for another couple weeks away. They're leaving me all alone! In theory, it sounds very exciting, but in reality … it gets sad really really fast. But it will give me a chance to concentrate on work without having to stop to pick-up-drop-off-make-dinner-bandage-boo-boos.

Zucchini in a bowl, lemon zucchini bread in a load pan, and lemon zucchini bread on parchment paper with vanilla on top

Recipe tips

This recipe is as simple to put together as any other quick bread, so the devil's in the details of the ingredients and method.

Lately, there have been some comments on recipes from readers who have had a problem with a relatively simple recipe, and it usually comes down to one of three things

  • Measuring dry ingredients by weight (volume is so so so unreliable, due to unavoidable human error and/or variation in dry measuring cups)
  • Oven temperature. If your oven runs hot (most do; mine does!) and you are not relying upon a separate oven thermometer, the outside of baked good will cook too quickly, long before the inside has a chance to finish and your baked goods will burn and sink.
Overhead view of lemon zucchini bread on a white plate

I can't totally promise that this will be my very last zucchini recipe of the season. It's just such a versatile vegetable, and I just have so much zucchini and squash and I think you might, too.  

But if you're looking for a uniquely flavorful, moist and tender quick bread, this is the one for you. Make it for someone special in your life, whether they're leaving you all alone for a month or not. If you'd like a classic cake without the zucchini, try our gluten free lemon cake, with a fluffy white frosting.

Iced Lemon Zucchini Bread

5 from 13 votes
Prep Time: 20 minutes
Cook Time: 50 minutes
Yield: 12 slices
This sweet, tender lemon zucchini bread is packed with zucchini you won't ever taste, and has a pop of bright lemon flavor!

Equipment

  • Blender
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Ingredients 

For the zucchini bread

  • 1 โ… cup (228 g) all purpose gluten free flour, (I used Better Batter; please click thru for full info on appropriate blends)
  • ยพ teaspoon xanthan gum, (omit if your blend already contains it)
  • 6 tablespoons (54 g) cornstarch, (or try potato starch or arrowroot)
  • ยฝ teaspoon baking soda
  • 1 teaspoon baking powder
  • ยฝ teaspoon kosher salt
  • 1 cup (200 g) granulated sugar
  • Zest of 1 large lemon
  • 2 cups (200 g) grated zucchini
  • 2 (100 g (weighed out of shell)) eggs, at room temperature, beaten
  • 5 tablespoons (70 g) neutral oil, (like vegetable, canola or peanut oil)
  • 3 tablespoons freshly squeezed lemon juice, (from 1 large lemon)

For the glaze

  • 1 ยฝ cups (173 g) confectionersโ€™ sugar
  • 1 ยฝ tablespoons freshly squeezed lemon juice, plus more by the 1/4 teaspoonful if necessary

Instructions 

  • Preheat your oven to 325ยฐF. Grease a standard 9-inch x 5-inch loaf pan and set it aside.

Prepare the batter.

  • In a large bowl, place flour, xanthan gum, cornstarch, baking soda, baking powder, salt and sugar, and whisk to combine well.
  • Add the lemon zest, and whisk until evenly distributed throughout the mixture, breaking up any lumps in the zest.
  • Place 1 1/4 cups (125 g) of the grated zucchini on a large paper towel, fold over the towel and squeeze the zucchini once firmly to release some of the moisture. T
  • he zucchini should now weigh about 100 grams.
  • Add the drained shredded zucchini to the dry ingredients and mix to combine. Set the dry ingredients aside.
  • Place the remaining 3/4 cup (75 g) of grated and drained zucchini, along with the eggs, oil and lemon juice in a blender, and pulse until well-blended and beginning to emulsify.
  • Create a well in the center of the bowl of dry ingredients, add the wet ingredient mixture. The batter will be thick.
  • Scrape it into the prepared loaf pan, and smooth the top with a wet spatula.

Bake the bread.

  • Place the loaf pan in the center of the preheated oven.
  • Bake, rotating once, until the top is lightly golden brown and a toothpick inserted in the center of the loaf comes out with a few moist crumbs attached (about 50 minutes).
  • Remove from the oven and allow to cool for at least 30 minutes in the loaf pan before transferring to a wire rack to cool completely.

Glaze the bread.

  • In a medium-size bowl, place the confectionersโ€™ sugar and 1 1/2 tablespoons lemon juice.
  • Mix well, until a thick paste forms.
  • Add more lemon juice by the 1/4-teaspoon, mixing to combine well, until the glaze falls off the spoon slowly, in a thick but pourable glaze.
  • Add liquid very slowly, as it is much easier to thin, than to thicken, the glaze.
  • If you do thin the glaze too much, add more confectionersโ€™ sugar a teaspoon at a time to thicken it.
  • Pour the glaze over the top of the cooled bread and, using a small offset spatula or large knife, spread into an even layer.
  • Allow the glaze to set at room temperature before slicing the loaf thickly and serving.

Nutrition information is automatically calculated, so should only be used as an approximation.

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Iced Gluten Free Lemon Zucchini Bread

About Nicole Hunn

Hi, Iโ€™m Nicole. I create gluten free recipes that really work and taste as good as you remember. No more making separate meals when someone is GF, or buying packaged foods that arenโ€™t good enough to justify the price. At Gluten Free on a Shoestring, โ€œgood, for gluten freeโ€ just isnโ€™t good enough!

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15 Comments

  1. Loretta K says:

    OH MY GOODNESS!!!!! Best zucchini bread I have ever tasted! My husband calls it “crack bread” it is so addictive. Wow! Ate half the loaf last night as soon as it was cooled & iced. I was amazed though at how much water I had to squeeze out of my zucchini (it was too big) in order to get it to the recommended weight in your recipe. I don’t think it would have been as good had I not removed some of that water. Thank you for adding that tidbit to the recipe. I really like your chocolate chip zucchini bread recipe, and made that one yest. as well. But this one is off the charts! Nicely done Nicole. I love all your recipes and make them often. Own most all of your cook books & can’t wait to see what the next one brings. Keep up the nice work :) Question though: Any advice for making mini-loafs of this recipe. I would love to make up several and freeze them for winter. Thoughts??